The outer shell was created by first starting with a 3D printed heart shape. This was used as a ... The LEDs are flashed in time with the heartbeat of the person holding the heart, thanks to ...

Your heart beats about 100,000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times. Give a tennis ball a good ...

When your heart “skips a beat” it may feel like a brief flutter or flip-flop in your chest. A scary symptom that is usually harmless, that skipped beat feeling is actually an extra beat that ...